1. Old article, pretty liberating to read.

http://www.guardian.co.uk/lifeandstyle/2007/mar/10/familyandrelationship...

2. A few more from the same website, this one on a SD reflecting on her SM.
Stepmother Dearest.

http://www.guardian.co.uk/lifeandstyle/2012/jun/02/clare-conville-stepmo...